honda ns125 bore please help

nick10121974 · L Plate Warrior Joined: 08 Dec 2009 Karma :

can no one help me out then with the honda ns125r bore problem got it off ebay was on there as nsr125 bore but when looked at it could see it was just like mine ns125r not nsr so got it tryed it on the bottom end and all fits right. but where do i get a piston for it cos honda said there is no over sized piston for my ns125r. so cant work out whats going on if it is the nsr the i would of thought it would not fit mine at all

shadowbiker · Traffic Copper Joined: 14 Oct 2009 Karma :

Providing you have bought a std ns125r barrel, This piston should fit it as it for the std ns125r bore.
https://cgi.ebay.co.uk/NS-125-piston-kit-Honda-NS125-NS125F-NS125R-std-size_W0QQitemZ250530119542QQcmdZViewItemQQptZUK_Motorcycle_Parts?hash=item3a54c23f76

if you bought the nsr125 barrel this one should fit

https://cgi.ebay.co.uk/Honda-NSR125-92-04-54mm-Std-Piston-kit_W0QQitemZ200370997464QQcmdZViewItemQQptZUK_Motorcycle_Parts?hash=item2ea70ac8d8

If thats were your coming from ?

shadowbiker · Traffic Copper Joined: 14 Oct 2009 Karma :

Also mate, not many members are online at 11pm at night due to work the next morning. So please dont create more threads with the same question Smile

https://www.bikechatforums.com/viewtopic.php?t=187908

Just a friendly tip.

You will probably have kickstart and a few others online sometime tomorrow, I guarantee one of them will also anser your question

Smile

happy riding

Thumbs Up

Kickstart · The Oracle Joined: 04 Feb 2002 Karma :

Hi

The NSR barrel is quite different to the NS.

The NS (nor the NSR) can be rebored. They have plated bores. What can be done is that they are bored out a substantial amount and a liner fitted (which can be rebored). However if this has been done and then rebored you need an oversize piston. PJME might well be able to source one for you.

Also possible that someone has fitted a big bore piston kit. Not sure if anyone sold one for the NS but there were a few sold for various 125s to take them out to about 140cc using a bored out stock barrel.

All the best

Keith
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